Undead Skeleton Rider Emerges Through Mystical Moonlit Portal

A haunting skeletal rider mounted on a ghostly horse emerges from a glowing moonlit portal while a blonde woman stands frozen in shallow water nearby. The cinematic fantasy setting, purple mystical lighting, and supernatural undead visuals create an eerie and immersive dark fantasy atmosphere. Dramatic creature design, magical scenery, and suspenseful composition blend into a visually striking gothic nightmare encounter.